Smoke-recording apparatus.



H. G. ALGER.

SMOKE RECORDING APPARATUS.

APPLIUA'I'ION FILED SEPT. a, 1912.

Patented Apr. 21, 1914.

2 SHEETSQ-SHEET 1.

c0. WASHINGTON.

H. G. ALGER.

SMOKE RECORDING APPARATUS.

APPLIOATION FILED ssrT. s, 1912.

Patented Apr. 21, 191i 2 SHEETS-SHEET 2.

INVENTOR W&%%

HARLEY G. ALGER, OF CHICAGO HEIGHTS, ILLINOIS.

SMOKE-RECORDING APPARATUS.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application filed September 6, 1912. Serial No. 719,009.

To all whom it may concern:

Be it known that I, HARLEY G. ALcnR, a citizen of the United States, and resident of Chicago Heights, in the county of Cook and State of Illinois, have invented new and useful Improvements in Smoke Recording Apparatus, of which the following is a specification.

My invention relates to apparatus for recording or indicating one or more of the constituents of smoke or other gases, one 0 ject being to produce a device of this character which shall record or indicate the relative amount or the value of such constituent promptly instead of a considerable length of time after such constituent has reached such value in the smoke or other gas. For example when used for recording the dark colored constituent of smoke which is mainly unburned carbon, my apparatus gives a prompt record.

A further object is to produce a device which shall give a record truly corresponding to the amount of such constituent contained in the smoke or other gas, while a still further object is to combine the various parts so as to produce a more efficient device with the least possible expense.

In the accompanying drawings Figures 1 and 2 show elevation and plan views respectively of my invention adapted to make a continuous record; Fig. 3, is an elevation of a modification of my invention adapted to make an intermittent record; Fig. 4 is a bottom view of Fig. 3; Figs. 5 and 6, show elevation and plan views respectively of a modification; Fig. 7, shows a special arrangement of an air compressor for supplying gas to be recorded, while Fig. 8, shows a detail of one of the parts which will be further explained.

In the various figures, 1, represents any suitable support upon which the various parts may be mounted. A suitable recording member, of the drum, disk or other type, a drum, 2, being shown, is adapted to receive and record the amount of the desired constituent. The drum, 2, carrying a suitable record chart is mounted preferably with its axis vertical; at one end of the drum, a screw, 3, projects coincident with its axis. The screw, 3, is carried by an adjustable threaded nut, 4, held in position and prevented from turning by the bosses, 5, 5, of the bracket, 6, secured to the support, 1. The nut, 4, is normally held closed by a spring, 7, Fig. 8, held in compression by extending arms, 8, When closed the nut, 4, engages the screw, 3, so that as the drum, 2, is revolved it is also caused to move axially. 13y pressing the arms, 8, 8, together the nut releases the screw, 3, and the drum, 2, may then be moved. axially by hand which is of service when adjusting the record chart. A gear, 9, with relatively long face, meshes with a gear, 10, of a suitable clockwork mechanism, 11, so that the drum, 2, is caused to revolve at a uniform rate as time passes. A shaft, 12, extending beyond the gear, 9, and journaled in a bearing, 13, suitably secured to the support, 1, allows the drum to move axially as it is revolved. A fan or blower, 14, Figs. 1, 2, 3 and 4, driven-by a suitable motor, 15, is adapted to receive smoke or other gas and force it against the recording member. In Figs. 1, and 2, the blower, 14, and motor, 15, are shown supported by the bracket, 16, carried by the support, 1; in Figs. 3 'and'4, the blower and motor are shown secured direct to the support, 1. In Figs. 5 and 6, is shown an air compressor, 17, with a suitable cylinder, 18, for compressing the A pipe, 19, leads to the source of gas supply as for example the'breeching or chimney and as the blower, 14, or air compressor, 17, is operated, smoke is drawn in through the pipe, 19, and delivered in considerable volume through the pipe 20, which supplies smoke and which may lead out of doors or back to the breeching or chimney. A pipe or tube, 21, of relatively small diameter connects with the pipe, 20, and leads to a nozzle, 22, which is adapted to deliver smoke against the recording chart of the drum, 2. By having an excess of smoke delivered through the pipe, 20, by the blower, 14, I am able to have smoke received by the blower at a comparatively rapid rate which insures that smoke is delivered promptly to the pipe, 21, which intercepts a portion of the smoke and conveys this portion to the nozzle 22 or other delivery means which delivers only the intercepted portion for the purpose of obtaining an indication of its constituents. The smoke then reaches the pipe, 21, and is recorded promptly whereas, if only the smoke to be recorded were taken from the source of supply a considerable amount of time must necessarily elapse before it can be recorded especially if the recording mechanism is at a considerable distance from the source of supply. In order to insure correct records the smoke should be delivered at a constant rate and for this purpose I provide the pipe, 20, with means for maintaining a constant pressure. Any suitable means may be used for this purpose such as a suitably arranged liquid seal, a pressure reducing valve or a common valve which may be throttled.

In Figs. 1, 3, and 4, is shown a valve, 23,

which may be throttled to maintain the desired pressure, especially when a blower which delivers gas at a uniform rate is used, while a pressure reducing valve is shown at, 24, Figs. 5 and 6. In order to insure most even results and most correct records I preferably lead the pipe, 21, through a suitable cooler or condenser, 25, which may be held by the support, 1, and which may be arranged to be supplied with cold water or other cooling medium by. means of pipes, 51 and 52. After leaving the cooler the gas preferably passes through a moisture separator, 26, of any approved design having a drain, 50. Any moisture contained in the smoke or gas, which would interfere with the best results, will then be condensed in the cooler, 25, and separated in the separator, 26, so that moisture free smoke will be de livered through the nozzle, 22, against the chart, on the drum, 2.

In Figs. 1 and 2, I have shown a smoke recorder adapted to make a continuous record by blowing a continuous stream of smoke against a suitable chart. As the drum, 2, is revolved by the clockwork, 11, it travels preferably downward so that gravity assists in its movement thus making a helically shaped and continuous line upon the chart which varies in shade or density with the smoke in the chimney or other source of supply for the corresponding time. In some cases it is desirable to have the smoke blown intermittently against the chart and for this purpose I provide the pipe, 20, Figs. 3 and 4, with flexible connections, 27 and 28. From the portion of the pipe, 20, between the flexible connection, 27 and 28, I lead a pipe, 21, having a nozzle, 22 terminating at a point near the drum, 2. IVhere the pipe, 21, connects to the pipe, 20, I provide a shield or casing, 29, Figs. 3 and 4, surrounding the nozzle, 22 and of suitable shape to allow oscillation of the pipe, 21, and nozzle, 22, therein. A worm gear, 30, driven by the motor, 15, drives a gear, 31, which operates a gear, 32, through the shaft, 33, suitably journaled in bearings, 34, and 35, carried by the support, 1; the gear, 32, drives a gear, 36, suitably mounted on a shaft, 37, journaled in bearings, 38 and 39, carried by the support, 1.- The gear, 36, carries a crank pin, 40; to which is connected a connecting rod, '41. To the movable part of the pipe,

"20,-1s securedan' arm, 42, to which the opposite end of the connecting rod, 41, is attached. Motion is transmitted through the gears, 30, 31, 32, and 36 and through the connecting rod, 41, so as to oscillate the movable portion of the pipe, 20, thus causing the nozzle, 22, to move back and forth past a suitably arranged aperture or slot, 43, in the casing, 2. As the nozzle, 22, passes the slot, 43, a pufi' of smoke will be driven against the chart of the drum, 2, and the rates of motion of the drum, 2, and the oscillating nozzle, 22, may be proportioned to give an intermittent record upon the chart. It is evident that by making suitable connections at the points, 27 and 28, in the pipe, 20, and by suitably arranging the other parts with a suitable driving mechanism it would be possible to revolve the pipe, 20, with nozzle, 22, within a case provided with a slot thus also obtaining an intermittent record. To the casing, 29, I connect a pipe, 44, which leads to the chimney or breeching at a point under pressure less than atmospheric pressure so that the smoke issuing from the nozzle, 22, is drawn off to the chimney and thus does not issue from the slot, 43, only when the nozzle, 22, comes opposite such slot. A valve, 45, may be used to close the pipe, 44, when not in use, and other suitable valves may be used in the various pipe lines to close them when they are not in use.

In Fig. 7, I have shown an arrangement whereby a double acting air compressor, 46, may be used to supply two recording devices. The pipe, 19, carries smoke from one chimney to one end of the double acting air compressor cylinder, 49, which delivers it through the pipe, 20, furnishing the smoke for one recording chart, while the pipe, 47, leads smoke from another chimney to the opposite end of cylinder, 49, which delivers it through the pipe, 48, which corresponds to pipe, 20, of Figs. 1 to (3, to a second recording chart, both of which may be carried by a. single drum of proper dimensions.

It is evident that wide variations in the proportions and :l1tl11g6l1111t5 of the various parts may be made without departing from the scope of my invention and I do not confine myself to the particular constructions set forth.

\Vhat I claim as my invention to protect by Letters Patent is:

1. In a device of the character described, a recording member, a nozzle for delivering gas thereto, a supply pipe and means for i11- tercepting a portion of the gas supplied by the supply pipe and for delivering said intercepted portion to the nozzle.

2. In a device of the characterdescribed, a recording member, means for delivering gas thereto, a supply pipe and means for interceptinga portion of the gas supplied and for conveying said portion to the delivering means.

and desire record upon this recording member.

3. In a device of the character described, a recording member, means for delivering gas thereto, a supply pipe, means for intercepting a portion of the gas supplied, means for conveying said portion to the delivering means and a separator in said conveying means for the purpose of separating moisture from the intercepted portion.

4:. In a device of the character described, a recording member, a nozzle for delivering gas to the recording member and means for moving the nozzle to cause an intermittent 12. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member and a swinging pipe within the casing adapted to deliver gas through the aperture.

13. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe passing to the casing and a nozzle within the casing and adapted to receive gas supplied by the gas supply pipe and deliver it through the aperture to the recording member.

14. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe leading through the casing and means for intercepting a portion of 5. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe passing through the casing and a swinging tube adapted to receive gas from the supply pipe and deliver it the gas passing through the gas supply pipe through the aperture to the recording and for delivering gas through the aperture member. to the recording member.

6. In a device of the character described, a recording member, means for delivering gas thereto, a supply pipe leading to a point near the device and means for causing an excess of gas to flow through the supply pipe, said delivering means being adapted to receive a portion only of the gas passing through the supply pipe,

7 In a device of the character described, a recording member, means for delivering gas thereto, a supply pipe, means for intercepting a portion of the gas supplied, means for conveying said portion to the delivering means and a cooler in said conveying means for the purpose of cooling only said intercepted portion of the gas.

8. In a device of the character described, a recording member, a tube for delivering gas to the recording member and a casing surrounding the delivery end of said tube for the purpose of collecting unused gas.

9. In a device of the character described, a recording member, a pipe for supplying an excess of gas, means for delivering gas from the supply pipe to the recording member and means communicating with the supply pipe for the purpose of maintaining a constant pressure in the delivering means and for allowing the escape of unused gas.

10. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe passing through the casing, a nozzle adapted to receive gas from the gas supply pipe and deliver it through the aperture to the recording member.

11. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member and a movable nozzle positioned within the casing and adapted to deliver gas through the aperture.

15. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe leading to the casing and a movable nozzle adapted to receive gas supplied and to deliver gas through the aperture to the recording member.

16. In a device of the character described, means for supplying excess gas thereto, a recording member, a nozzle adapted to deliver gas to the recording member, and means for intercepting a portion of the gas supplied by the supplying means and for conveying said portion to the nozzle.

17. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a supply pipe for supplying an excess of gas, a nozzle within said casing and adapted to deliver gas through the aperture to the recording member and means for interceptmg a portion of the gas supplied, and for conveying said intercepted portion to the nozzle.

18. In a device of the character described, a recording member, a casing having an aperture adjacent to the recording member, a gas supply pipe passing through the casing and adapted to supply excess gas, a tube for delivering gas through the aperture to the recording member, and means for intercepting a portion of the gas supplied by the supply pipe and for conveying the intercepted portion to the tube,

In testimony whereof I have afiixed my signature in the presence of two subscribing witnesses.

HARLEY G. ALGER.

Witnesses N. P. Cunrron, EMMA ALGER.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of I'atents,

Washington, D. G. 

